In this video, Aliens director James Cameron is directing the Stan Winston Studio puppeteers as they test out the full-sized prototype. Two stuntmen were suspended from a crane in order to work the arms. It serves its purpose, offering a rough idea of what the xenomorph would look like, but she doesn't look like she's in danger of hurting anything. Fortunately, a lot of painstaking work went into crafting a truly horrifying queen for the actual movie.